Rock star Keith Richards is best known for writing hit songs like “Jumpin’ Jack Flash” and “(I Can’t Get No) Satisfaction,” but these days he’s singing a different tune. The Rolling Stones legend has just written a children’s book, according to a March 12 report from People.

Little, Brown Books for Young Readers will publish Richards's book Gus & Me: The Story of My Granddad and My First Guitar. The story recounts the rocker’s early days with his jazz guitarist grandfather.

Richards claims to know his stuff when it comes to kids: "I have just become a grandfather for the fifth time, so I know what I’m talking about," the 70-year-old guitarist said in a press release. "The bond, the special bond, between kids and grandparents is unique and should be treasured. This is a story of one of those magical moments. May I be as great a grandfather as Gus was to me."

Richards collaborated on the surprising project with co-writers Barnaby Harris and Bill Shapiro, as well as his 28-year-old daughter, Theodora Dupree Richards, who illustrated the book with pen and ink drawings.

According to the Los Angeles Times, Theodora Richards, who was named after her great-grandfather, learned a lot about her family while collaborating with her famous dad: “To be able to explore my father’s relationship with his grandfather was a gift in itself,” she said. “The things that I’ve learnt during this whole process have just been life affirming.”

“Gus & Me” is scheduled for publication on Sept. 9 by Little, Brown Books for Young Readers. The hardcover will be packaged with a bonus CD.

This isn't Richards's first book. In 2010, he published his autobiography, "Life."